I'm in a poetry/quote mood, (must be the singleness factor).
Here's some goodens from my "Passion" book of quotations (which you can find for $3 at any of those cheap shops run by chinese dudes, you know the ones)

"Anyone can be passionate,
but it takes real lovers to be silly." ~ Rose Franken

(and here was my philosophy while writing Cabaret)
"When in doubt, make a fool of yourself.
There is a microscopically thin line between being brilliantly creative and acting lik the most
gigantic idiot on earth. So what the hell, leap." ~ Cynthia Heimel

"A woman has got to love a bad man once or twice
in her life to be thankful for a good one." ~ Mae West

"The absolute yearning of one human body
for another particular body and its indifference
to substitutes is one of life's major mysteries." ~ Iris Murdoch

"The tragedy is not that love doesn't last.
The tragedy is the love that lasts." ~ Shirley Hazzard

"The love that lasts longest is the love that is never returned."
~ Somerset Maugham

"Though jealousy be produced by love,
as ashes are by fire, yet jealousy extinguishes love
as ashes smother the flame." ~ Margaret of Navarre

"If love lives on hope, it dies with it;
it is a fire which goes out for want of fuel." ~ Pierre Cornielle

"Sometimes when one person is missing
the whole world seems depopulated." ~ Lamartine

"Jealousy would be far less torturous if we understood
that love is a passion entirely unrelated to our merits." ~ Paul Eldridge

"Pleasure of love lasts but a moment.
Pain of love lasts a lifetime."
~ Jean Pierre Claris De Florian

AND LASTLY MY FAVOURITE QUOTE IN THE ENTIRE BOOK...

"To love is to suffer. To avoid suffering one must not love.
But then one suffers from not loving. Therefore, to love
is to suffer; not to love is to suffer; to suffer is to suffer.
To be happy is to love. To be happy, then, is to suffer,
but suffering makes one unhappy.
Therefore, to be happy one must love, or love to suffer,
or suffer from too much happiness."
~ Woody Allen